I can give a short synopsis:
Dude is forced on a military mission and has to wear a power armor suit that injects him with stimulants when he gets tired or doesn't want to continue with the mission.
The only memorable scene is where he wants to sleep and the suit injects him and dude tries for 10 hours or so trying to sleep but can't.
It is not anything mainstream (Edge of Tomorrow) and could be an internet short only.
1000x internets and God mode to whomever finds it